/* Professional Engineering Design System */

/* Bento Cards */
.bento-card {
    background: var(--eng-surface);
    border: 1px solid var(--eng-border);
    border-radius: 12px;
    padding: 1.5rem;
    height: 100%;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
    position: relative;
}

/* Alternate background for improved list readability */
.row.g-4>div:nth-child(even) .bento-card {
    background: linear-gradient(135deg, #1c2128 0%, #3d444d 100%) !important;
    border-color: rgba(0, 212, 255, 0.3) !important;
}

.row.g-4>div:nth-child(even) .bento-card::after {
    content: '';
    position: absolute;
    top: 5px;
    right: 5px;
    width: 20px;
    height: 20px;
    border-top: 2px solid var(--eng-primary);
    border-right: 2px solid var(--eng-primary);
    opacity: 0.3;
    pointer-events: none;
}

.bento-card:hover {
    transform: translateY(-4px);
    border-color: var(--eng-primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 0 12px rgba(0, 212, 255, 0.1);
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--eng-primary);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.bento-card:hover::before {
    opacity: 1;
}

/* Glass Modals */
.modal-content {
    background: rgba(22, 27, 34, 0.85);
    backdrop-filter: blur(16px);
    border: 1px solid var(--eng-border);
    border-radius: 16px;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
}

.modal-header {
    border-bottom: 1px solid var(--eng-border);
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--eng-border);
    padding: 1.25rem;
}

/* Engineering Table */
.eng-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 8px;
}

.eng-table tr {
    background: var(--eng-surface);
    transition: background 0.2s ease;
}

.eng-table tr:hover {
    background: #21262d;
}

.eng-table td,
.eng-table th {
    padding: 1rem;
    border-top: 1px solid var(--eng-border);
    border-bottom: 1px solid var(--eng-border);
}

.eng-table td:first-child,
.eng-table th:first-child {
    border-left: 1px solid var(--eng-border);
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.eng-table td:last-child,
.eng-table th:last-child {
    border-right: 1px solid var(--eng-border);
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
}

/* Status Indicators */
.status-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    background: var(--eng-secondary);
    box-shadow: 0 0 0 rgba(16, 185, 129, 0.4);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

/* Buttons */
.btn-eng {
    font-family: var(--eng-mono);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    font-weight: 600;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.btn-eng-primary {
    background: var(--eng-primary);
    color: #0d1117;
    border: none;
}

.btn-eng-primary:hover {
    background: #33e0ff;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.4);
    transform: translateY(-1px);
}

.btn-eng-outline {
    background: transparent;
    border: 1px solid var(--eng-border);
    color: var(--eng-text);
}

.btn-eng-outline:hover {
    border-color: var(--eng-primary);
    color: var(--eng-primary);
}

/* Forms */
.form-control,
.form-select {
    background-color: #0d1117;
    border: 1px solid var(--eng-border);
    color: var(--eng-text);
    border-radius: 8px;
}

.form-control:focus,
.form-select:focus {
    background-color: #0d1117;
    border-color: var(--eng-primary);
    color: var(--eng-text);
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.1);
}

/* Data Points */
.data-point {
    font-family: var(--eng-mono);
    background: rgba(0, 212, 255, 0.05);
    color: var(--eng-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}